When my old shop started carrying King headsets, we practically had to send in a urine sample. My coworker pen them a smarmy letter about how they had to offer us the same proof of legitimacy and they came though admirably. Everything made in the US, they recycle, and some other stuff, you can probably just read the press release... but I was impressed. I've never owned one of their HSs but they seem to have a bulletproof company.